Magazine Loading of Solid Products and Method of Dispensing Same

ABSTRACT

A method of dispensing a first solid product and a second solid product with a solid product dispenser includes placing the first solid product in a product housing of the dispenser and placing the second solid product in the product housing on top of the first solid product, the first and second solid products being different products. A portion of the first solid product is dispensed during at least a first cycle of the dispenser until the first solid product has been partially depleted to a size small enough to allow the second solid product to also be dispensed, then a portion of the first solid product and a portion of the second solid product are dispensed during at least a second cycle of the dispenser until the first solid product has been completely depleted, and then a portion of the second solid product is dispensed during at least a third cycle of the dispenser.

This application is a continuation application of U.S. patentapplication Ser. No. 11/487,138, filed Jul. 14, 2006.

FIELD OF THE INVENTION

The present invention relates to magazine loading of solid products byalternating two different solid products within a product housing of asolid product dispenser and a method of dispensing the magazine loadedsolid products.

BACKGROUND OF THE INVENTION

Extruded clay or ceramic tile, sometimes called quarry tile, is commonlyused in institutional and non-institutional kitchens such as restaurantsbecause it is relatively inexpensive, durable, and has relatively lowporosity. Quarry tile is made from natural clays with the compositionbeing approximately 50% hard particles (silicon) and the other 50% softparticles (clay components). When the clay tile is fired, it develops apervious glaze-like coating which encapsulates pores under the surface.Because of the pervious nature of the surface, these pores collect andentrap various soils that are extremely difficult to clean thoroughly.

During the manufacturing process of quarry tile, a natural surfaceroughness may be created consisting of hard, microscopic peaks of silicaand inert clays. The surface texture or roughness coupled with thesurface porosity provides the tile with an optimum static coefficient offriction (traction). New quarry tile tends to be slip-resistant, andsome tiles feature anti-slip properties such as added grit, gridpatterns, or a rougher surface texture. However, even the anti-slip tilebecomes worn and soiled over time and becomes slippery and potentiallydangerous. After a short time, the quarry tile receives abrasion andsurface wear due to foot traffic, soils, and daily surface cleaning. Themicroscopic peaks may become polished or worn down, leading to flatsurface areas. These worn areas result in a lower static coefficient offriction and create a potentially slippery floor surface. In addition,frying, grilling, and sautéing create airborne grease, which causes apotentially hazardous film to develop on the tile. Despite dailycleaning, there if often a buildup of soil and grease over time, and aquarry tile floor can become saturated with grease and continue to stayslippery despite routine cleaning.

Hard surface cleaners useful in institutional and non-institutionalenvironments may take any number of forms. An example of such a cleaneris an aqueous cleaner formulation that can be neutral, acidic, oralkaline in pH when diluted to create a use solution. Aqueous neutral,acidic, or alkaline cleaners in use solutions are typically formulatedusing a major proportion of an aqueous diluent and a minor proportion ofthe cleaner. Cleaners having a neutral pH or an alkaline pH effectivelyremove fresher grease soils, and cleaners having an acidic pHeffectively remove polymerized grease soils. An example of an acidiccleaner formulation useful in cleaning soils comprising food residue isdisclosed in U.S. Pat. No. 6,432,906, which is incorporated by referenceherein. An example of a basic (alkaline) cleaner formulation useful incleaning soils comprising food residue is disclosed in U.S. Pat. No.5,474,698, which is incorporated by reference herein.

U.S. Pat. No. 5,797,986, which is incorporated by reference herein,discloses a method of cleaning a floor using a first cleaner with a pHdeparting from neutral followed by a second cleaner with a complementarypH. In one aspect, the first cleaner is an acidic cleaner and the secondcleaner is a basic cleaner. In another aspect, the first cleaner is abasic cleaner and the second cleaner is an acidic cleaner. This methodprovides optimal cleaning.

The cleanliness of hard surfaces such as floors is characteristic of asubstantially improved coefficient of friction (hereinafter “COF”). ACOF greater than about 0.4 connotes a non-slip surface of substantiallyimproves safety when compared to slippery soiled surfaces. By increasingthe coefficient of friction (traction) and reducing floor slipperiness,dangerous accidents can be reduced.

SUMMARY OF THE INVENTION

One aspect of the present invention provides a method of dispensing afirst solid product and a second solid product with a solid productdispenser. The first solid product and the second solid product arepositioned in a product housing of the solid product dispenser. Thefirst solid product and the second solid product are different products.The first solid product is placed in the product housing of the solidproduct dispenser, and the second solid product is placed in the producthousing of the solid product dispenser on top of the first solidproduct. A portion of the first solid product is dispensed during atleast a first cycle of the solid product dispenser to create a first usesolution until the first solid product has been partially depleted to asize small enough to allow the second solid product to also bedispensed. A portion of the first solid product and a portion of thesecond solid product are dispensed during at least a second cycle of thesolid product dispenser to create a second use solution until the firstsolid product has been completely depleted. A portion of the secondsolid product is dispensed during at least a third cycle of the solidproduct dispenser to create a third use solution. The first usesolution, the second use solution, and the third use solution aredifferent cleaning solutions that are used separately.

One aspect of the present invention provides a method of dispensing afirst solid product and a second solid product with a solid productdispenser. The first solid product and the second solid product arepositioned in a product housing of the solid product dispenser. Thefirst solid product and the second solid product are different products.The first solid product is placed in the product housing of the solidproduct dispenser. A portion of the first solid product is dispensedduring at least a first cycle of the solid product dispenser to create afirst use solution until the first solid product has been partiallydepleted to a size small enough to allow the second solid product to bepositioned in the product housing on top of the first solid product. Thesecond solid product is placed in the product housing of the solidproduct dispenser on top of the first solid product. A portion of thefirst solid product is dispensed during at least a second cycle of thesolid product dispenser until the first solid product has been partiallydepleted to a size small enough to allow the second solid product toalso be dispensed. A portion of the first solid product and a portion ofthe second solid product are dispensed during at least a third cycle ofthe solid product dispenser to create a second use solution until thefirst solid product has been completely depleted. A portion of thesecond solid product is dispensed during at least a fourth cycle of thesolid product dispenser to create a third use solution. The first usesolution, the second use solution, and the third use solution aredifferent cleaning solutions that are used separately.

One aspect of the present invention provides a method of dispensing afirst solid product and a second solid product with a solid productdispenser. The first solid product and the second solid product arepositioned in a product housing of the solid product dispenser. Thefirst solid product and the second solid product are different products.The first solid product is placed in the product housing, and a bottomportion of the first solid product is contacted with a diluent todissolve a portion of the first solid product to create a first usesolution. A portion of the first solid product is dispensed during atleast a first cycle of the solid product dispenser until the first solidproduct has been partially depleted to a size small enough to allow thesecond solid product to be positioned within the product housing on topof the first solid product. The second solid product is placed in theproduct housing of the solid product dispenser on top of the first solidproduct. A bottom portion of the first solid product is contacted withthe diluent to dissolve a portion of the first solid product to createthe first use solution. A portion of the first solid product during atleast a second cycle of the solid product dispenser is dispensed untilthe first solid product has been partially depleted to a size smallenough to allow the second solid product to also be dispensed. A bottomportion of the first solid product and a bottom portion of the secondsolid product is contacted with the diluent to dissolve a portion of thefirst solid product and a portion of the second solid product to createa second use solution. A portion of the first solid product and aportion of the second solid product is dispensed during at least a thirdcycle of the solid product dispenser until the first solid product hasbeen completely depleted. A bottom portion of the second solid productis contacted with the diluent to dissolve a portion of the second solidproduct to create a third use solution. A portion of the second solidproduct is dispensed during at least a fourth cycle of the solid productdispenser.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-section view of a solid product dispenser containing afirst solid product and a second solid product within a product housingof the solid product dispenser;

FIG. 2 is a schematic view of the first solid product as it would bepositioned in the product housing of the solid product dispenser shownin FIG. 1;

FIG. 3 is a schematic view of the first solid product shown in FIG. 2partially depleted as it would be positioned in the product housing ofthe solid product dispenser shown in FIG. 1;

FIG. 4 is a schematic view of the first solid product shown in FIGS. 1and 2 partially depleted with the second solid product positioned on topof the first solid product as they would be positioned in the producthousing of the solid product dispenser shown in FIG. 1;

FIG. 5 is a schematic view of the first solid product shown in FIGS. 1and 2 partially depleted with the second solid product positioned on topof the first solid product as they would be positioned in the producthousing of the solid product dispenser shown in FIG. 1;

FIG. 6 is a schematic view of the second product shown in FIGS. 4 and 5after the first product has been completely depleted as it would bepositioned in the product housing of the solid product dispenser shownin FIG. 1;

FIG. 7 is a graph showing a pH transition from an acid solid product toan alkaline solid product over several dispensing cycles; and

FIG. 8 is a graph showing average coefficient of friction readings withacid product compared to alternating acid and alkaline products.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

The present invention relates to magazine loading of solid products byalternating two different solid products within a product housing of asolid product dispenser and a method of dispensing the magazine loadedsolid products.

The term “alternating” as used herein includes arranging at least twodifferent solid products in a desired order including, but not limitedto, every other, every second, every third, and the like. The purposefor alternating at least two different solid products is to cycle theuse solutions created therefrom through a desired pH range to enhancethe overall effectiveness of the system. The exact manner in which thesolid products are alternated may vary depending upon the type ofcycling desired.

Any suitable solid product dispenser may be used. Examples of suitablesolid product dispensers are disclosed in U.S. Pat. Nos. 4,426,362;4,687,121; 4,690,305; and 4,826,661 and U.S. Provisional PatentApplication No. 60/795,340. Because such solid product dispensers arewell known in the art, only a general description of how such a solidproduct dispenser operates is discussed.

FIG. 1 shows a solid product dispenser 100 including a top housingportion 101 and a bottom housing portion 111 with a support member 102such as a screen supported between the top housing portion 101 and thebottom housing portion 111. The top housing portion 101 includes aproduct housing 103 with a cavity 104 in which a first solid product 150and a second solid product 160 are positioned. The support member 102supports a bottom portion of the solid product or products beingdispensed. A cover 105 may be placed over the cavity 104 to protect thefirst and second solid products 150 and 160. The bottom housing portion111 includes a diluent inlet 112 in fluid communication with a spraynozzle 113. A diluent, such as water, is supplied via a conduit (notshown) to the diluent inlet 112 and is then sprayed via the spray nozzle113 onto a bottom portion 151 of the first solid product 150 through thesupport member 102. The bottom portion 151 may include a bottom surfaceand sides of the first solid product 150. A portion of the second solidproduct 160 may also be sprayed with the diluent to erode a portion ofthe second solid product 160. The diluent erodes a portion of the firstsolid product 150, and perhaps a portion of the second solid product160, to create a use solution, which flows through a cavity 114, througha use solution outlet 115, and through an outlet conduit 116 into a mopbucket (not shown) or any other suitable container.

As the first solid product 150 erodes and becomes smaller, a greaterportion of the second solid product 160 will be sprayed with thediluent. Eventually, over a course of several dispensing cycles, thefirst solid product 150 will be completely dispensed leaving just thesecond solid product 160 to be dispensed. As the first solid product 150is eroded and becomes smaller, or as the second solid product 160 iseroded and becomes smaller, a new first solid product 150 may be placedon top of the second solid product 160. Thus, as the solid products aredispensed, alternating products are placed within the product housing103 to replenish the products.

FIGS. 2-6 schematically illustrate how the solid products 150 and 160are dispensed over several dispensing cycles. FIG. 2 shows the firstsolid product 150 as it would be positioned in the product housing 103of the solid product dispenser 100. After several dispensing cycles, thefirst solid product 150 becomes partially depleted and smaller in size,as shown in FIG. 3. Once the first solid product 150 becomes smallenough to allow another product to be placed within the product housing103, the second solid product 160 may be positioned within the producthousing 103 on top of the first solid product 150 as shown in FIGS. 1and 4. The first solid product 150 continues to become depleted as shownin FIG. 5. As the first solid product 150 becomes more depleted and evensmaller, there is a transition from the first solid product 150 to thesecond solid product 160 where both products will be dispensed. Theerosion of the first solid product 150 does not always erode evenly in astraight line across the bottom surface of the product, as shown in theschematic views. The erosion may be uneven, resulting in both solidproducts 150 and 160 being dispensed substantially concurrently. Inaddition, the dispenser may spray the diluent onto the sides of thesolid products 150 and 160 resulting in both solid products 150 and 160being dispensed substantially concurrently. Once the first solid product150 is totally depleted, only the second solid product 160 remains asshown in FIG. 6. Then, as the second solid product 160 is depleted andbecomes small enough to allow another product to be placed within theproduct housing 103, a new first solid product 150 is positioned withinthe product housing 103 on top of the second solid product 160. Thisrotation of products continues.

It is recognized that solid products smaller in size may be placedwithin the product housing so that the first solid product does not haveto be partially depleted before the second solid product is placed ontop of the first solid product within the product housing.Alternatively, the product housing may be large enough to receive bothsolid products.

If the first solid product 150 is an acidic cleaning product, then thesecond solid product 160 is preferably an alkaline cleaning product.During the transition from the first solid product 150 to the secondsolid product 160, the pH changes from acidic to neutral (while aportion of both solid products 150 and 160 are being eroded anddispensed) to alkaline. If the first solid product 150 is an alkalinecleaning product, then the second solid product 160 is preferably anacidic cleaning product. During the transition from the first solidproduct 150 to the second solid product 160, the pH changes fromalkaline to neutral to acidic.

Although acidic cleaning products and alkaline cleaning products aredescribed herein, it is recognized that other suitable productsproviding benefits of alternating chemistries may also be used. It isalso recognized that more than two products may be rotated within theproduct dispenser. Any products that could be placed within a producthousing of the same dispenser could be used. Preferably, the productswould not chemically react with one another. Preferably, the productswould dispense at approximately the same rate and utilize the samedispenser settings such as pressure, nozzle height, flow rate,temperature, etc.

FIG. 7 shows the pH transition from an acidic solid product, to analkaline solid product, to an acidic solid product, and so on over 70dispensing cycles, each dispensing cycle being represented by the fillnumber. Each fill used 4 gallons of water to erode a portion of theproduct and create a use solution. The acidic solid product wasdispensed over the first to the eleventh fills, both the acidic solidproduct and the alkaline solid product were dispensed over the twelfthto twenty-seventh fills, the alkaline solid product was dispensed overthe twenty-eighth to thirty-eighth fills, both the alkaline solidproduct and the acidic solid product were dispensed over thethirty-ninth to forty-ninth fills, and the cycle begins again. Thetransition from an acidic pH to an alkaline pH (a pH ranging from 6.00to 8.00) occurred over approximately 10 fills using a total ofapproximately 40 gallons of water. It is recognized that smaller orlarger solid products may be used and that the numbers of fills overwhich each solid product is completely dispensed may vary.

This rotation through the ranges of pH (acid to neutral to alkaline toneutral to acid . . . ) delivers improved cleaning results. Preferably,the acidic use solution has a pH of 3.00 to 6.00, the neutral usesolution has a pH of 6.00 to 8.00, and the alkaline use solution has apH of 8.00 to 11.00. Cleaning products having an acidic pH effectivelyremove polymerized grease soils while cleaning products having analkaline pH effectively remove fresher grease soils. During thetransition from an acidic pH to an alkaline pH, there is a neutral pH,which is effective in removing fresher grease soils although nottypically as well as an alkaline pH. Acidic cleaning products removebuild-up on floors not effectively removed by alkaline cleaning productsand vice versa. Therefore, by alternating these products within aproduct dispenser, improved cleaning results are delivered.

A preferred acidic cleaning product includes the ingredients listed inTable 1. The weight percentage is the weight of an ingredient based uponthe total weight of the composition.

TABLE 1 Acidic Product Ingredients Weight Percentage Ingredients ofProduct NACCONOL ® 90G 44.79 (Sodium Dodecylbenzene Sulfonate) CitricAcid 20.00 Sodium Citrate Dihydrate 15.00 Urea, Microprilled 10.00SURFONIC ® L 12-6 10.00 (Ethoxylated Alcohol) Fragrance 0.20 Dye 0.01TOTAL 100.00

It is recognized that any suitable acidic cleaning product may be used.An example of an acidic cleaning product that may be used is disclosedin U.S. Pat. No. 6,432,906, which is incorporated by reference herein.Another example of an acidic cleaning product that may be used isdisclosed in U.S. Patent Application Publication No. US 2005/0197276 A1,which is incorporated by reference herein.

A preferred alkaline cleaning product includes the ingredients listed inTable 2. The weight percentage is the weight of an ingredient based uponthe total weight of the composition.

TABLE 2 Alkaline Product Ingredients Weight Percentage Ingredients ofProduct NACCONOL ® 90G 45.67 (Sodium Dodecylbenzene Sulfonate)Dissolvine 220S 20.00 Sodium Carbonate 5.00 Sodium Bicarbonate 5.00Sodium Metasilicate 1.00 Pentahydrate Urea 12.50 Pluronic L62 5.00SURFONIC ® L 12-6 5.00 (Ethoxylated Alcohol) Water 0.62 Fragrance 0.20Dye 0.01 TOTAL 100.00

It is recognized that any suitable alkaline cleaning product may beused. An example of an alkaline cleaning product that may be used isdisclosed in U.S. patent application Ser. No. 11/487,599, titledAlkaline Floor Cleaning Composition and Method of Cleaning a Floor, andpublished under U.S. Patent Application Publication No. US 2008/0015133A1, which is incorporated by reference herein. Another example of analkaline cleaning product that may be used is disclosed in U.S. Pat. No.5,474,698, which is incorporated by reference herein.

The acidic solid product disclosed in U.S. Patent ApplicationPublication No. US 2005/0197276 A1 and the alkaline solid productdisclosed in U.S. Patent Application Publication No. US 2008/0015133 A1are the SOLIDSENSE™ Floor Care A & B products by Ecolab Inc. of St.Paul, Minn.

There are many benefits to simply alternating two different solidproducts within a product housing of a solid product dispenser. Onebenefit is that only one step is needed to clean the area and as productis dispensed in a use solution, the use solution rotates through a rangeof pH to effectively clean a range of soils. Another benefit is thatonly one product dispenser is needed and when the first product level islow, a second product is placed within the product housing. In otherwords, no product selection is required. This eliminates the need tokeep track of which product should be used for each cleaning as the usesolution is automatically dispensed by simply alternating the productswithin the product housing and using the dispenser in its normal course.These benefits are not exhaustive as there are many additional benefitsobvious to those skilled in the art.

Example 1

The coefficient of friction (hereinafter “COF”) was measured on quarrytile floors proximate a fryer, a grill, a sink, and a lobby at twoseparate quick service restaurant locations, Location 1 and Location 2.The quarry tile floors were 4 inches by 8 inches American Olean Q01Canyon Red quarry tiles. The COF was measured using a Brungraber Mark IISlip-Tester with a 3 inches by 3 inches Neolite Sensor according to theStandard Test Method for Using a Portable Inclineable Articulated StrutSlip Tester (PIAST), Designation F 1677-96, under ASTM Standards, ASTMInternational of West Conshohocken, Pa.

The first measurement, measurement A, was taken after cleaning thefloors with an acidic cleaning product, KADET™ Quarry Tile Floor Cleanerby Ecolab Inc. of St. Paul, Minn. Each of the floors was cleaned with ause solution of KADET™ Quarry Tile Floor Cleaner prepared in a mopbucket according to the directions on the product label. The usesolution was applied onto the floor with a mop and then brushed oragitated with the mop on the surface of the floor. A squeegee was usedto direct the use solution into a floor drain, and then the floor wasallowed to dry. The second measurement, measurement B, was taken aftercleaning the floors with an alternating acidic cleaning product and analkaline cleaning product, the SOLIDSENSE™ Floor Care A & B products byEcolab Inc. of St. Paul, Minn., according to the principles of thepresent invention. The alternating cleaning products were used over aneight week period and measured at weeks four and eight. Typically, onesolid product block was used per week, so the typical cycle would allowfor rotation through an acid to alkaline to acid to alkaline usesolution before the measurement at week four was taken.

The measurement Dirty/Dry was taken after the breakfast or lunchactivity of the quick service restaurants when the quarry tile kitchenfloors would be dirty with fresh grease from frying starch or proteinfood items and some areas could also have polymerized grease. Themeasurement Dirty/Wet was taken under the same circumstances asDirty/Dry but wet with water on the floors to simulate a spill. Themeasurement Clean/Dry was taken after the floors had been cleaned usingthe typical floor cleaning protocol using either the acidic cleaningproduct (measurement A) or the alternating acidic cleaning product andthe alkaline cleaning product (measurement B) and the floors wereallowed to dry. The Clean/Wet measurement was taken under the samecircumstances as Clean/Dry but wet with water on the floors to simulatea spill or a still wet after mopping situation.

As shown in FIG. 8, the COF was greater after the floors had beencleaned with the alternating acidic cleaning product and the alkalinecleaning product. Therefore, by alternating the acidic cleaning productand the alkaline cleaning product, the floors had better traction andwere less slippery.

The above specification, examples and data provide a completedescription of the manufacture and use of the composition of theinvention. Since many embodiments of the invention can be made withoutdeparting from the spirit and scope of the invention, the inventionresides in the claims hereinafter appended.

1. A method of dispensing a first solid product and a second solidproduct with a solid product dispenser, the first solid product and thesecond solid product being positioned in a product housing of the solidproduct dispenser, the first solid product and the second solid productbeing different products, comprising: a) placing the first solid productin the product housing of the solid product dispenser; b) placing thesecond solid product in the product housing of the solid productdispenser on top of the first solid product; c) dispensing a portion ofthe first solid product during at least a first cycle of the solidproduct dispenser to create a first use solution until the first solidproduct has been partially depleted to a size small enough to allow thesecond solid product to also be dispensed; d) dispensing a portion ofthe first solid product and a portion of the second solid product duringat least a second cycle of the solid product dispenser to create asecond use solution until the first solid product has been completelydepleted; and e) dispensing a portion of the second solid product duringat least a third cycle of the solid product dispenser to create a thirduse solution, wherein the first use solution, the second use solution,and the third use solution are different cleaning solutions that areused separately.
 2. The method of claim 1, wherein during dispensing aportion of the first solid product, dispensing portions of the firstsolid product and the second solid product, and dispensing a portion ofthe second solid product there is a rotation in ranges of pH in thefirst, second, and third use solutions, and wherein the first usesolution, the second use solution, and the third use solution arecleaning solutions used separately to target different types of soils.3. The method of claim 1, wherein the first solid product is an acidiccleaning product and the second solid product is an alkaline cleaningproduct, wherein a use solution having a neutral pH is dispensed duringstep 1(d).
 4. The method of claim 3, wherein the acidic use solution hasa pH from 3.00 to 6.00, the neutral use solution has a pH from 6.00 to8.00, and the alkaline use solution has a pH from 8.00 to 11.00.
 5. Themethod of claim 1, wherein the first solid product is an alkalinecleaning product and the second solid product is an acidic cleaningproduct, wherein a use solution having a neutral pH is dispensed duringstep 1(d).
 6. The method of claim 5, wherein the alkaline use solutionhas a pH from 8.00 to 11.00, the neutral use solution has a pH from 6.00to 8.00, and the acidic use solution has a pH from 3.00 to 6.00.
 7. Amethod of dispensing a first solid product and a second solid productwith a solid product dispenser, the first solid product and the secondsolid product being positioned in a product housing of the solid productdispenser, the first solid product and the second solid product beingdifferent products, comprising: a) placing the first solid product inthe product housing of the solid product dispenser; b) dispensing aportion of the first solid product during at least a first cycle of thesolid product dispenser to create a first use solution until the firstsolid product has been partially depleted to a size small enough toallow the second solid product to be positioned in the product housingon top of the first solid product; c) placing the second solid productin the product housing of the solid product dispenser on top of thefirst solid product; d) dispensing a portion of the first solid productduring at least a second cycle of the solid product dispenser until thefirst solid product has been partially depleted to a size small enoughto allow the second solid product to also be dispensed; e) dispensing aportion of the first solid product and a portion of the second solidproduct during at least a third cycle of the solid product dispenser tocreate a second use solution until the first solid product has beencompletely depleted; and f) dispensing a portion of the second solidproduct during at least a fourth cycle of the solid product dispenser tocreate a third use solution, wherein the first use solution, the seconduse solution, and the third use solution are different cleaningsolutions that are used separately.
 8. The method of claim 7, whereinduring dispensing a portion of the first solid product, dispensingportions of the first solid product and the second solid product, anddispensing a portion of the second solid product there is a rotation inranges of pH in the first, second, and third use solutions, and whereinthe first use solution, the second use solution, and the third usesolution are cleaning solutions used separately to target differenttypes of soils.
 9. The method of claim 7, wherein the first solidproduct is an acidic cleaning product and the second solid product is analkaline cleaning product, wherein a use solution having a neutral pH isdispensed during step 7(e).
 10. The method of claim 9, wherein theacidic use solution has a pH from 3.00 to 6.00, the neutral use solutionhas a pH from 6.00 to 8.00, and the alkaline use solution has a pH from8.00 to 11.00.
 11. The method of claim 7, wherein the first solidproduct is an alkaline cleaning product and the second solid product isan acidic cleaning product, wherein a use solution having a neutral pHis dispensed during step 7(e).
 12. The method of claim 11, wherein thealkaline use solution has a pH from 8.00 to 11.00, the neutral usesolution has a pH from 6.00 to 8.00, and the acidic use solution has apH from 3.00 to 6.00.
 13. A method of dispensing a first solid productand a second solid product with a solid product dispenser, the firstsolid product and the second solid product being positioned in a producthousing of the solid product dispenser, the first solid product and thesecond solid product being different products, comprising: a) placingthe first solid product in the product housing; b) contacting a bottomportion of the first solid product with a diluent to dissolve a portionof the first solid product to create a first use solution; c) dispensinga portion of the first solid product during at least a first cycle ofthe solid product dispenser until the first solid product has beenpartially depleted to a size small enough to allow the second solidproduct to be positioned within the product housing on top of the firstsolid product; d) placing the second solid product in the producthousing of the solid product dispenser on top of the first solidproduct; e) contacting a bottom portion of the first solid product withthe diluent to dissolve a portion of the first solid product to createthe first use solution; f) dispensing a portion of the first solidproduct during at least a second cycle of the solid product dispenseruntil the first solid product has been partially depleted to a sizesmall enough to allow the second solid product to also be dispensed; g)contacting a bottom portion of the first solid product and a bottomportion of the second solid product with the diluent to dissolve aportion of the first solid product and a portion of the second solidproduct to create a second use solution; h) dispensing a portion of thefirst solid product and a portion of the second solid product during atleast a third cycle of the solid product dispenser until the first solidproduct has been completely depleted; i) contacting a bottom portion ofthe second solid product with the diluent to dissolve a portion of thesecond solid product to create a third use solution; and j) dispensing aportion of the second solid product during at least a fourth cycle ofthe solid product dispenser.
 14. The method of claim 13, wherein duringdispensing a portion of the first solid product, dispensing portions ofthe first solid product and the second solid product, and dispensing aportion of the second solid product there is a rotation in ranges of pHin the first, second, and third use solutions, and wherein the first usesolution, the second use solution, and the third use solution arecleaning solutions used separately to target different types of soils.15. The method of claim 13, wherein the first use solution has an acidicpH, the second use solution has a neutral pH, and the third use solutionhas an alkaline pH.
 16. The method of claim 15, wherein the acidic usesolution has a pH from 3.00 to 6.00, the neutral use solution has a pHfrom 6.00 to 8.00, and the alkaline use solution has a pH from 8.00 to11.00.
 17. The method of claim 13, wherein the first use solution has analkaline pH, the second use solution has a neutral pH, and the third usesolution has an acidic pH.
 18. The method of claim 17, wherein thealkaline use solution has a pH from 8.00 to 11.00, the neutral usesolution has a pH from 6.00 to 8.00, and the acidic use solution has apH from 3.00 to 6.00.
 19. The method of claim 13, wherein the productsare sprayed with the diluent.